Improvement in sectional steam-generators



B. DENSMORE. sEcTxoNAL STEAM-GENERATOR.

Patented May 9. 1876.

Illlas'ses. I

N.FETERS. PHOTO-LITHDGHAPHR. WKSHINGYON. D. C.

UNITED STATES Pr.\.-'rr.N'rv OFFICE?,

BYRONl DENSMORE, OFBROOKLY, NEW YORK.

IMPROVEMENT IN SECTIKONAL STEAM-GENERATORS.

Specification forming part lot' Letters Patent N o.` 177,223, dated May9, 1876; application filed 4 December 15, 1875.

To all whom it may concern:

B e it known that I, BYRON DENsMoRE, of Brooklyn, in the county of Kingsand State of New York, have invented a new and useful ImprovementfinSectional Steam-Generators; and I do hereby declare that the followingis a full, clear, and exactdescription of the same, reierencebeing hadto the accompanying drawing, which forms a part of this specification.

This invention is designed as an improvement upon the steam-generatorfor which Letwith the steam-drum of. the generator. Be-

sides these, there Were other pipes used in the construction of thegenerator; but in this recital of invention no special reference will bemade to them, as myimprovernent in sectional steam-generators, as abovereferred to, consists in a certain construction whereby adirect'communication is established between the adjacent side-wallsections, to promote a free passage 0f the waterI and steam, or either,from section to section, without the aid of longitudinal pipes andindependent nipples conl necting them with the several sections.

Figure l represents a partly-sectional front elevation ot asteam-generator, in part, having my invention applied 5 and Fig. 2,aside view, in part, of the same in partial section.

A A are the independent upright sections which constitute Vthe sidewalls ofthe A boiler. These sections are made with anges on their frontfaces, to give a close or lush surface. B B are the transverse, andpreferably reversely-inclined, tubes, which connect the oppositesectional side Walls of the boiler, and whereby. an active circulationis obtained, and the water is caused to keep at the same level at theopposite ends of the tubes, as described in my former Letters Patenthereiubefore referred to.

It is preferred that there should be at least two up-and-down rows ofthese tubes B B in each section, and over these tubes, in eachV nectedwith the sections by nipples c.

This construction, so far, does not essentially dii'er from thatdescribed in my Letters Patent of October 18,1870; but, instead ofconnecting the upper ends, for instance, of the sections A A, byindependent nipples, With upper longitudinal pipes, which, in theirturn, connect by branches with a steam drum, I connect each adjacentsection with the other, at or near their upper ends, by means ofperforated or tubular facings d d, so that, supposing the water-level tobe through the cen= ter of the tube C, there will be a free passage forthe steam from section to section, on each side of the boiler, throughthe connecting facings or facing-pieces d d. By this provision thesteam, as -fast as generated, may be transferred from the severalsections A A, on either side, by one or more outlets, g;1n directconnection with a common' receiver or steam-drum. The same arrangementof perforated or tubular facings d d may be applied to the lower ends orportions of theindependent sections A A, and the longitudinal pipes D Dand the connecting-nipples c c be dispensed with.

- I claim- In a steam-generator having hollow side Walls connected bytransverse tubes, andcomposed of independent upright sections, the

connection ot' the adjacent sections in either side wall by means otperforated facings, substantially as specified.

BYRON DENsMoRE.

Witnesses MICHAEL RYAN, FRED. HAYNEs.

